RE: [java-gnome-hackers] Tree/List widgets

[Jeffrey M. <ku...@zo...>]

Sorry.  I wasn't able to get to this today.  I will give
it a try tomorrow.

-Jeff

On Wed, 2002-09-04 at 07:47, Jeffrey Morgan wrote:
> Let me give it a try this morning.  I'll let you know once it
> is in cvs.
> 
> -Jeff
> 
> > On Tue, 2002-09-03 at 19:11, Jeffrey Morgan wrote:
> > > Let me know if you want help with this.
> > I do.
> > 
> > I've been trying for quite a while now but have made little 
> > progress. I
> > changed the TreeIter append method to 
> > JNIEXPORT jint JNICALL
> > Java_org_gnu_gtk_ListStore_gtk_1list_1store_1append (JNIEnv 
> > *env, jclass
> > cls, jint listStore) 
> >   {
> >         GtkListStore *listStore_g = (GtkListStore *)listStore;
> > 		GtkTreeIter *iter_g = (GtkTreeIter *) 
> > g_malloc(sizeof(GtkTreeIter));
> >         {
> >             gtk_list_store_append (listStore_g, iter_g);
> >         }
> > 		return (jint)iter_g;
> >     }
> > 
> > This removed the iter errors. 
> > 
> > But then there are a number of error relating the the glib.Value and
> > glib.Type classes. A number of them were resolved by bypassing those
> > classes and creating new set methods in ListStore (I had planned to do
> > something similar in the java code anyway):
> > JNIEXPORT void JNICALL
> > Java_org_gnu_gtk_ListStore_gtk_1list_1store_1set_1value_1strin
> > g (JNIEnv
> > *env, 
> >         jclass cls, jint listStore, jint iter, jint column, char*
> > strvalue) 
> >     {
> >         GtkListStore *listStore_g = (GtkListStore *)listStore;
> >         GtkTreeIter *iter_g = (GtkTreeIter *)iter;
> >         gint32 column_g = (gint32) column;	
> > 		
> > 		GValue *test;
> >         GValue *value_g = g_value_init(test, G_TYPE_STRING);
> >         {
> >             gtk_list_store_set_value (listStore_g, iter_g, column_g,
> > test);
> > 		}
> > 	}
> > 
> > This removed more of the warnings, but then I started to get strange
> > errors from the ListStore constructor (which still uses glib.Type). 
> > 
> > I think the main error is probably something to do with 
> > constructing and
> > returning glib.Type objects.
> > 
> > Also, there could be problems with gtk_value_init in some 
> > places - this
> > takes and empty gvalue as an argument and should initialise it, but
> > there is also a gvalue returned - I'm not sure what this is.
> > 
> > I've not committed any of the above changes. 
> > The src/examples/gtk/tree/TreeExample.java is still the current target
> > for testing. 
> > -- 
> > 
> > +----------------------------------------------+
> > | Mark Howard               cam.ac.uk   mh344@ |
> > | http://www.tildemh.com    tildemh.com    mh@ |
> > +----------------------------------------------+
> >